mirror of
https://thingvellir.net/git/overte
synced 2025-03-27 23:52:03 +01:00
132 lines
4.4 KiB
C++
132 lines
4.4 KiB
C++
//
|
|
// ArrayBufferClass.cpp
|
|
//
|
|
//
|
|
// Created by Clement on 7/3/14.
|
|
// Copyright 2014 High Fidelity, Inc.
|
|
//
|
|
// Distributed under the Apache License, Version 2.0.
|
|
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
|
|
//
|
|
|
|
#include <QDebug>
|
|
|
|
#include "ArrayBufferPrototype.h"
|
|
#include "ScriptEngine.h"
|
|
|
|
#include "ArrayBufferClass.h"
|
|
|
|
static const QString CLASS_NAME = "ArrayBuffer";
|
|
static const QString BYTE_LENGTH_PROPERTY_NAME = "byteLength";
|
|
|
|
Q_DECLARE_METATYPE(QByteArray*)
|
|
|
|
ArrayBufferClass::ArrayBufferClass(ScriptEngine* scriptEngine) :
|
|
QObject(scriptEngine->getScriptEngine()),
|
|
QScriptClass(scriptEngine->getScriptEngine()),
|
|
_scriptEngine(scriptEngine) {
|
|
qDebug() << "Created with engine: " << engine();
|
|
qScriptRegisterMetaType<QByteArray>(engine(), toScriptValue, fromScriptValue);
|
|
QScriptValue global = engine()->globalObject();
|
|
|
|
// Save string handles for quick lookup
|
|
_name = engine()->toStringHandle(CLASS_NAME.toLatin1());
|
|
_byteLength = engine()->toStringHandle(BYTE_LENGTH_PROPERTY_NAME.toLatin1());
|
|
|
|
// build prototype
|
|
_proto = engine()->newQObject(new ArrayBufferPrototype(this),
|
|
QScriptEngine::QtOwnership,
|
|
QScriptEngine::SkipMethodsInEnumeration |
|
|
QScriptEngine::ExcludeSuperClassMethods |
|
|
QScriptEngine::ExcludeSuperClassProperties);
|
|
|
|
_proto.setPrototype(global.property("Object").property("prototype"));
|
|
|
|
_ctor = engine()->newFunction(construct, _proto);
|
|
_ctor.setData(engine()->toScriptValue(this));
|
|
|
|
engine()->globalObject().setProperty(name(), _ctor);
|
|
}
|
|
|
|
QScriptValue ArrayBufferClass::newInstance(quint32 size) {
|
|
engine()->reportAdditionalMemoryCost(size);
|
|
QScriptEngine* eng = engine();
|
|
QVariant variant = QVariant::fromValue(QByteArray(size, 0));
|
|
QScriptValue data = eng->newVariant(variant);
|
|
return engine()->newObject(this, data);
|
|
}
|
|
|
|
QScriptValue ArrayBufferClass::newInstance(const QByteArray& ba) {
|
|
QScriptValue data = engine()->newVariant(QVariant::fromValue(ba));
|
|
return engine()->newObject(this, data);
|
|
}
|
|
|
|
QScriptValue ArrayBufferClass::construct(QScriptContext* context, QScriptEngine* engine) {
|
|
ArrayBufferClass* cls = qscriptvalue_cast<ArrayBufferClass*>(context->callee().data());
|
|
if (!cls) {
|
|
return QScriptValue();
|
|
}
|
|
|
|
QScriptValue arg = context->argument(0);
|
|
|
|
if (!arg.isValid() || !arg.isNumber()) {
|
|
return QScriptValue();
|
|
}
|
|
|
|
quint32 size = arg.toInt32();
|
|
QScriptValue newObject = cls->newInstance(size);
|
|
|
|
if (context->isCalledAsConstructor()) {
|
|
context->setThisObject(newObject);
|
|
return engine->undefinedValue();
|
|
}
|
|
|
|
return newObject;
|
|
}
|
|
|
|
QScriptClass::QueryFlags ArrayBufferClass::queryProperty(const QScriptValue& object,
|
|
const QScriptString& name,
|
|
QueryFlags flags, uint* id) {
|
|
QByteArray* ba = qscriptvalue_cast<QByteArray*>(object.data());
|
|
if (ba && name == _byteLength) {
|
|
// if the property queried is byteLength, only handle read access
|
|
return flags &= HandlesReadAccess;
|
|
}
|
|
return 0; // No access
|
|
}
|
|
|
|
QScriptValue ArrayBufferClass::property(const QScriptValue &object,
|
|
const QScriptString &name, uint id) {
|
|
QByteArray* ba = qscriptvalue_cast<QByteArray*>(object.data());
|
|
if (ba && name == _byteLength) {
|
|
return ba->length();
|
|
}
|
|
return QScriptValue();
|
|
}
|
|
|
|
QScriptValue::PropertyFlags ArrayBufferClass::propertyFlags(const QScriptValue& object,
|
|
const QScriptString& name, uint id) {
|
|
return QScriptValue::Undeletable;
|
|
}
|
|
|
|
QString ArrayBufferClass::name() const {
|
|
return _name.toString();
|
|
}
|
|
|
|
QScriptValue ArrayBufferClass::prototype() const {
|
|
return _proto;
|
|
}
|
|
|
|
QScriptValue ArrayBufferClass::toScriptValue(QScriptEngine* engine, const QByteArray& ba) {
|
|
QScriptValue ctor = engine->globalObject().property(CLASS_NAME);
|
|
ArrayBufferClass* cls = qscriptvalue_cast<ArrayBufferClass*>(ctor.data());
|
|
if (!cls) {
|
|
return engine->newVariant(QVariant::fromValue(ba));
|
|
}
|
|
return cls->newInstance(ba);
|
|
}
|
|
|
|
void ArrayBufferClass::fromScriptValue(const QScriptValue& obj, QByteArray& ba) {
|
|
ba = qvariant_cast<QByteArray>(obj.data().toVariant());
|
|
}
|
|
|